US Bridges

TR 355 over Mud Creek

PoorPosted for load

Henry County, Illinois · 1.5 MI NE Alpha · Structure no. 037322200000000

Built
1948
77 years old
Condition
Poor
inspected May 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
50
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 355 over Mud Creek is a concrete continuous culvert carrying TR 355 over Mud Creek in Henry County, Illinois. It was built in 1948, so it is 77 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, roughly 20% of them trucks, projected to reach 54 by 2046. The structure is 23 ft (7 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesTR 355
CrossesMud Creek
Location1.5 MI NE Alpha
RouteCounty Highway 0
Coordinates41.21697, -90.35814
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating31.4 US tons
Inventory rating18.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length23 ft (7 m)
Longest span11 ft (3.4 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic54 by 2046
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 355 over Mud Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is TR 355 over Mud Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does TR 355 over Mud Creek carry?

About 50 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is TR 355 over Mud Creek?

The structure is 23 ft (7 m) long with a longest span of 11 ft (3.4 m) and a deck 24 ft wide.

Who owns TR 355 over Mud Creek?

It is owned by the Town or Township Highway Agency.